Title :
Improving the operation of ZVT DC-DC converters
Author :
Menegáz, Paulo J M ; Có, Marcio A. ; Simonetti, Domingos S L ; Vieira, Jose L F
Author_Institution :
Dept. of Electr. Eng., Fed.. Univ. of Espirito Santo, Brazil
Abstract :
This paper presents an improved ZVT DC-DC boost power converter using a regenerative snubber. The proposed snubber uses a magnetically coupled cell to reduce the turn-off switching loss of the auxiliary switch. The method has been employed to build a 500 W/100 kHz prototype. The experimental results show the ZVT DC-DC boost converter waveforms with and without the regenerative snubber. A high efficiency is achieved using the proposed improvement
Keywords :
DC-DC power convertors; PWM power convertors; snubbers; switching circuits; 100 kHz; 500 W; ZVS DC-DC boost power converter; auxiliary switch; magnetically coupled cell; operation improvement; regenerative snubber; turn-off switching loss reduction; Capacitors; Couplings; DC-DC power converters; Diodes; Magnetic switching; Snubbers; Switches; Switching loss; Voltage; Zero current switching;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.789018
